Sources:

Christophe Mory, Ernst Beyeler, la Passion de l'Art, Gallimard, 2009

http://www.fondationbeyeler.ch/

http://www.timesonline.co.uk/tol/comment/obituaries/article7050175.ece 

http://elisabeth.blog.lemonde.fr/2010/02/27/ernst-beyeler/

http://savatier.blog.lemonde.fr/2010/02/27/ernst-beyeler-la-passion-de-lart/

http://www.artclair.com/oeil/archives/docs_article/62766/chez-beyeler---primitifs---et-modernes-sur-un-pied-d-egalite.php

http://www.hebdo.ch/ernst_beyeler_appris_a_regarder_66464_.html